D-flat dominant 7th chord

How to play D♭7 on piano

The D♭7 chord is D♭ F A♭ C♭: D♭ (root), F (major 3rd), A♭ (perfect 5th), C♭ (minor 7th).

Spread four fingers over the four notes, thumb on D♭ in the right hand and the little finger on D♭ in the left.

Each inversion moves the bottom note up an octave. Practicing them in a row teaches your hand the same chord in three or four shapes, so you can reach it from wherever your hand already is.